Kinetics of cytochrome P-450 reduction: evidence for faster reduction of the high-spin ferric state.

Abstract

Results are presented that support our hypothesis [Backes, W. L., Sligar, S. G., & Schenkman, J. B. (1980) Biochem. Biophys. Res. Commun. 97, 860-867] that the multiphasic reduction kinetics of cytochrome P-450 are, in part, due to the spin equilibrium of the ferric hemoprotein. The disappearance of the high-spin charge-transfer band at 650 nm during… (More)

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